| Total | Shading | Depth | Frequency | Calibrated | Data Available | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mentioned | Brand: Onset | ≤5m | Not mentioned | Median (minutes) | Mean (minutes) | Not mentioned | Yes | Yes | ||
| Unique DOI | 329 | 15 (4%) | 13 | 127 (39%) | 110 (33%) | 15 | 67.7 | 87 (26%) | 44 (13%) | 96 (29%) |
| >1 logger type | 397 | 17 (4%) | 16 | 154 (39%) | 122 (31%) | 15 | 61.2 | 102 (26%) | 63 (16%) | 126 (32%) |
More than 60% of reviewed literature used loggers made by Onset Computer Corporation. The dominant sensor was from the HOBO Pendant series with HOBO Pro’s closely following. Nearly 20% of studies did not identify which HOBO logger they used (“Not mentioned”, “HOBO”).
Of the studies using Sea-Bird Scientific, the second most common logger brand, models SBE 37 and 39 made up about half.
Studies were classified under 5 types, most of which were Ecology. Loggers were set to record measurements as low as once per 0.5 seconds (Physical Oceanography) to once per day (Biogeochemistry, Ecology), although ecological studies use a greater range of logging frequencies than any other study type.
This map is interactive. Zoom in and out, click and drag to move around, and click on a pie chart or icon to learn more. The pie chart info is also shown in the figure below the map with regions descending from most to least number of studies.